These islands form part of the French overseas collectivity of Wallis and Futuna in the South Pacific. Per WIki:
Futuna takes its name from an endonym derived from the local futu, meaning fish-poison tree. Futuna is where Pierre Chanel was martyred in 1841, becoming Polynesia’s only Catholic saint. The cathedral of Poi now stands on the site where he was martyred. Chanel was clubbed to death in April 1841 at the instigation of a chief upset because his son converted.
Photo by California.